Now the first book is where you meet most of the great characters and find out about their back stories. Then the action and intense fights start.
The second book is where it gets interesting with some new characters and some new villains that are pretty cool. And the book has so many new twists and turns that you will have to pay attention though out the whole thing because if you don't you will probably miss something good that might be important.
For the third book, that is where it gets to the point where some things are being summed up, but then a whole bunch of other points come out which keeps you reading the whole way though. But that’s not where it stops, because at the end of the third book something happens that is one of the biggest surprises that I have ever read so I can't wait for the fourth that will probably be just as good as the others.
So all around the “Ultimate Agent” series is one of the best series I have ever read and I would definitely recommend it to any one that likes action, comedy, some romance, and some awesome characters that you will definitely love. The books could not be any better because there was not one part of the series where I wanted to stop reading it. It is an amazing series of books and I don't see any reason why you would not want to read it!